Offaly Castles Project
For details on all 200 castle sites in Offaly see www.archaeology.ie - click on Archaeological Survey Database and you can search by location or monument type.
There has been collaberative work over the past number of years between the Archaeological Survey of Ireland and the Heritage Office doing further research on the castles of County Offaly. This is now being presented as individual pdfs or booklets for each site. The first site completed is Ballindarra and more will follow (approx 199..)
Ballindarra Castle Co Offaly 3 MB
In 2007, Gridpoint Solutions were commissioned by Offaly County Council to do 3d scans of Dungar, Ballymooney, Ballycowan, Monasterorois, Clonmacnoise, Esker and Ballinlough castles. Work is currently continuing to make this information available on the web. See Gridpoint.